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Trichloroisocyanuric acid

Trichloroisocyanuric acid
Systematic name 1,3,5-trichloro-1,3,5-
Other names TCICA
Chemical formula C3Cl3N3O3
SMILES C1(=O)N(C(=O)N(C(=O)N1Cl)Cl)Cl
Molecular mass 232.41 g/mol
Appearance colourless solid
CAS number 87-90-1
Density 2.19 ± 0.1 g/cm³
Solubility in water 0.2%
Other solvents chlorocarbons
Melting point 249-51 °C
Boiling point decomp.
geometry planar
Crystal structure
Dipole moment 0 D
MSDS External MSDS
Main hazards lung irritant
NFPA 704
Flash point NA
R/S statement R: 8-22-31-36/37-50/53
S: 8-26-41-60-61
RTECS number XZ1925000
Supplementary data page
Structure and
n, εr, etc.
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds Cyanuric chloride
dichloroisocyanuric acid
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Trichloroisocyanuric acid (C3Cl3N3O3), also known as Symclosene, trichloro-s-triazinetrione, TCICA, and trichlor, is a chemical compound used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis.[1] This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.

Use in water treatment

The compound is a disinfectant, algicide and bactericide mainly for swimming pools and dyestuffs, and is also used as a bleaching agent in the textile industries.

See also


  1. ^ Hiegel, G. A. "Trichloroisocyanuric Acid" in Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons: New York. DOI: 10.1002/047084289X.rt209
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Trichloroisocyanuric_acid". A list of authors is available in Wikipedia.
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